This Starbucks is located inside the Safeway market.
We were staying at the Westgate Entertainment / Gila River Arena area and this came up as being 2 miles from our hotel. We came here on a Sunday morning around 10:00 am and one side of the parking lot was having a classic car and motorcycle show. That took up 1/4 of the parking lot right there.
Once you walk inside the left side of the store, you will literally run right into the Starbucks, and most likely a line. The store (if you can call it that) is tiny, and there's 2 baristas working it. One was cashiering, and the other making the drinks. The cashier wasn't able to stop to really help (except to serve a brewed coffee or pastry) because the line was never ending.
When I was in line, there were 3 people ahead of me. Apparently the queue for the drinks was probably 8 people deep because it took a while for my iced tea lemonade order to come up.
The barista was nice and friendly but the service slow. Three stars for being an A-OK location...